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Use differentiation to show the function f(x)=2x^3–12x^2+25x–11 is an increasing function for all values of x

Firstly, I would remember what differentiation shows - which is the rate of change of a function. I would think about how I could use this to show it's always increasing. Now the first derivative would sh...

Answered by • Further Mathematics tutor

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Inwiefern ist der Kölner Dom ein bedeutendes Bauwerk?

Der Kölner Dom ist die größte gotische Kirche in Europa und hat die größte Kirchfassade der Welt. Aber der Dom ist nicht nur groß, sondern auch besonders alt. Sein Bau wurde 1248 begonnen und erst 1880 vo...

Answered by Fiona P. • German tutor

1470 Views

What is the equation of the tangent of the circle x^2+y^2=25 at the point (3,4)

GraphFirstly, if not drawn for you it would be best to draw the graph which is given to you (in this case you should notice is a c...

Answered by Alireza A. • Maths tutor

5381 Views

Factorise the equation x^2 + 5x+6 = 0

(x+3)(x+2)

Answered by James W. • Maths tutor

2375 Views

Osmoregulation is the process by which the body regulates the volume of water in the body. Define homeostasis and describe where osmoreceptors are located. Explain how osmoreceptors work and describe the key osmoregulation hormone and its target organ.

Osmoreceptors are located in the brain, within they posterior pituitary of the hypothalamus.Osmoreceptors shrink in response to reduced water in the blood due to movement of water from the osmoreceptor in...

Answered by Joely K. • Biology tutor

2919 Views